The effect of deep tube well use on the incidence of childhood diarrhoea was assessed using a random effects negative binomial regression model.
采用随机影响负二项回归模型，评估深管井的使用对儿童发生腹泻的影响。
2
The incidence of certain diseases or other negative effects is measured in each group to see whether exposure to the suspect substance is associated with an increase.
对两种人群某种疾病或其他负面影响发病率进行测量，来看暴露于有怀疑本体是否与较高的发病率相关。
3
The incidence of infection between groups of ascites, over 60-year age and negative groups had significant difference.